diff options
| author | Samuel Holland <samuel.holland@sifive.com> | 2023-06-23 23:03:20 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-07-06 10:30:16 -0700 |
| commit | a2492ca86c98f676561f7d318b1e2e1786af0caf (patch) | |
| tree | 413a11ca1c9a207fd21d74e5dc5d578e7a664e4b /arch/riscv | |
| parent | 5177978ee074d55577aabad7c42b431e8af68fcc (diff) | |
riscv: Select HAVE_ARCH_USERFAULTFD_MINOR
This allocates the VM flag needed to support the userfaultfd minor fault
functionality. Because the flag bit is >= bit 32, it can only be enabled
for 64-bit kernels. See commit 7677f7fd8be7 ("userfaultfd: add minor
fault registration mode") for more information.
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20230624060321.3401504-1-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index e242bf63c0d2..e545713caf8f 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -100,6 +100,7 @@ config RISCV select HAVE_ARCH_THREAD_STRUCT_WHITELIST select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT && MMU + select HAVE_ARCH_USERFAULTFD_MINOR if 64BIT && USERFAULTFD select HAVE_ARCH_VMAP_STACK if MMU && 64BIT select HAVE_ASM_MODVERSIONS select HAVE_CONTEXT_TRACKING_USER |